Chain & sprockets replacement

Hey Guys,

I have a 09 Honda CB400 that needs chain and sprockets service/replacement for the first time since new. I had viewed and checked out a few articles and videos which seems sraight forward enough for me to do a DIY.

I ordered the parts online which is a package of "Tsubaki chain & BMA sprockets". But when I opened it, instead the mentioned brands I was suppposed to get and payed for. They had sent me a "EK chain in gold colour(525SRX, 124 Links) & supersprox sprockets(both standard sizes & made out of steal).

Has anyone come across this brands before? Which is better than the other, the good/bad?

Thanks for the inout in advance :-)